Verfahren zur Herstellung von 1-Desoxynojirimycin und dessen N-Derivaten
申请人:BAYER AG
公开号:EP0240868B1
公开(公告)日:1994-04-27
US4806650A
申请人:——
公开号:US4806650A
公开(公告)日:1989-02-21
Process for preparing 1-deoxynojirimycin and N-derivatives thereof
申请人:Bayer Aktiengesellschaft
公开号:US04806650A1
公开(公告)日:1989-02-21
A process for preparing a 1-deoxynojirimycin of the formula ##STR1## in which R is hydrogen, optionally substituted alkyl or aralkyl, which comprises converting D-glucose to an aminosorbitol ##STR2## protecting the amino group of the aminosorbitol with an alkalinically detachable group to form the protected compound of the formula ##STR3## in which X is an alkalinically detachable protective group, microbiologically oxidizing the protected compound to an oxidation product of the formula ##STR4## alkalinically splitting off the protective group X to form an aminosorbose of the formula ##STR5## and reducing the aminosorbose.